Ellis, Gwynn P. published the artcileOne-step synthesis and spectral study of 1-methylbenzimidazoles including use of a lanthanide shift reagent, Name: 4-Bromo-N-methyl-2-nitroaniline, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1974), 903-9, database is CAplus.
4-Substituted 1,2-phenylenediamines and their N-1-Ac derivatives with HCHO in boiling EtOH containing HCl gave 5- and 6-substituted 1-methylbenzimidazoles. E.g., 1,2-(H2N)2C6H3R-4 (R = NO2, Cl) gave 42% 6-nitro- and 43% 5-chloro-1-methyl-benzimidazole. Other 4-substituted 1,2-phenylenediamines gave mixtures The preparation of 5- and 6-substituted 1-methylbenzimid-azoles by other routes and the differentiation of isomeric pairs by lanthanide shift NMR spectroscopy is described.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about 53484-26-7. 53484-26-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Nitro Compound,Amine,Benzene, name is 4-Bromo-N-methyl-2-nitroaniline, and the molecular formula is C7H7BrN2O2, Name: 4-Bromo-N-methyl-2-nitroaniline.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary